User Manual
Table Of Contents
- OptiPlex 5400 Service Manual
- Contents
- Working inside your computer
- Removing and installing components
- Recommended tools
- Screw list
- Major components of OptiPlex 5400 All-in-One
- Stand
- Cable cover—optional
- Back cover
- Hard drive
- Memory modules
- System-board shield
- Solid-state drive
- Removing the M.2 2230 solid-state drive-slot 1
- Installing the M.2 2230 solid-state drive-slot 1
- Removing the M.2 2280 solid-state drive-slot 1
- Installing the M.2 2280 solid-state drive-slot 1
- Removing the M.2 2230 solid-state drive-slot 2
- Installing the M.2 2230 solid-state drive-slot 2
- Removing the M.2 2280 solid-state drive-slot 2
- Installing the M.2 2280 solid-state drive-slot 2
- System fan
- Coin-cell battery
- Wireless card
- Camera assembly
- Bottom cover
- Power-supply unit
- Power-supply fan
- Heat sink
- Processor
- Rear-I/O bracket
- System board
- Speakers
- Power-button board
- Microphones
- Side I/O-board
- Audio board
- Antenna modules
- Display panel
- Middle frame
- Drivers and downloads
- BIOS setup
- Troubleshooting
- Getting help and contacting Dell
Steps
1. Align and place the PSU in the slot on the display-assembly base.
2. Replace the screw (M3x5) to secure the PSU to the display-assembly base.
3. Connect the power-supply cable to the connector on the system board.
4. Route the power-supply cable through the routing guides on the rear-I/O bracket and PSU fan.
5. Align the screw hole on the power-supply socket with the screw hole on the rear-I/O bracket, and place it in the slot on the
rear-I/O bracket.
6. Replace the screw (M3x5) to secure the power-supply socket to the rear-I/O bracket.
Next steps
1. Install the bottom cover.
2. Install the system-board shield.
3. Install the back cover.
4. Install the cable cover (optional).
5. Install the stand.
6. Follow the procedure in After working inside your computer.
Power-supply fan
Removing the PSU fan
Prerequisites
1. Follow the procedure in Before working inside your computer.
2. Remove the stand.
3. Remove the cable cover (optional).
4. Remove the back cover.
5. Remove the system-board shield.
About this task
The following image indicates the location of the PSU fan and provides a visual representation of the removal procedure.
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Removing and installing components